ASTROSAT CZTI

Data Quality Report

Orbit 03997

Creation date: 2024-06-27T14:36:10.109401
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_247T01_9000000512_03997cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_03997cztM0_level2_quad_clean.evt
Size (bytes)453,412,800113,823,360
Size432.4 MB 108.6 MB
Events in quadrant A3,224,861749,414
Events in quadrant B3,290,032748,456
Events in quadrant C3,040,275741,904
Events in quadrant D3,700,782720,192

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145453
B0145292
C0142202
D0160032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6997530.757467%
B6997570.814635%
C6997590.843219%
D69971061.514935%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 9157 7000 0 0 0.00% 0.00%
B 9157 7000 3 3 0.03% 0.04%
C 9157 7000 0 0 0.00% 0.00%
D 9157 7000 34 34 0.37% 0.49%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 3 1 66806 406.33 795 778 162.5
A 8 15 47451 287.22 795 778 162.5
A 0 50 21022 124.58 795 778 162.5
B 14 167 68268 445.13 804 786 151.6
B 3 0 46617 302.32 804 786 151.6
B 15 204 34796 224.34 804 786 151.6
C 13 61 6453 31.65 777 779 179.3
C 9 247 2243 8.17 777 779 179.3
C 7 159 1933 6.44 777 779 179.3
D 2 63 442781 2417.06 770 749 182.9
D 13 239 120284 653.62 770 749 182.9
D 10 246 65622 354.73 770 749 182.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter